TMS320C54x DSKPLUS DSP STARTER KIT USER'S GUIDE
Contents
1. OFT S R34 R351 U2yiititit R54 R53 s 0 O oooo0oo00000000 O00000000000 ooooo0oo0oo0008g00 XDS510 emulator DSP external data bus 8 bit bidirectional 4 bit unidirectional printer port connectivity enabling high speed cable included The host port interface logic is an on board PAL device that operates as the main interface between the host PC s parallel port and the C542 host port in terface HPI As a result the interface logic gives the host PC direct control of the C542 s HPI and DSP reset signal and it can configure the board to operate with different PC parallel ports that is 4 bit and 8 bit printer ports Universal 5 V power supply included Buffered serial port Be and host port interface HPI control signal D D port IEEE1149 1 standard When you power the board and start the debugger the debugger software ini tializes the host interface logic and configures the board to the correct parallel port mode either 4 bit or 8 bit At this time the communication link between the DSKplus board and host PC is ready for operation For the DSKplus and the host to communicate properly the DSP must follow a common communication protocol defined by the host Therefore the host PC downloads the protocol to the DSP communication software which resides in DSP memory at address2. CPU and Peripherals TMS320C54x DSP Reference Set Volume 3 Algebraic Instruction Set TMS320C54x DSP Data Sheet TLC320AC01C Single Supply Analog Interface Circuit Data Manual 0 O O O O O O O O C L Several features of the DSKplus board enable MIP intensive low power applications One TMS320C542 C542 enhanced fixed point DSP 40 MIPS 25 ns instruction cycle time 10K words of dual access RAM DARAM 2K words boot ROM One time division multiplexed TDM serial port One buffered serial port BSP One host port interface HPI for PC to DSP communications One on chip timer Three power down modes on the C542 Programmable voice quality TLC320AC01 DAC ADC interface circuit Socketed PAL22V10 for board customization Socketed oscillator Phase locked loop PLL clock generator XDS510 emulator header I O expansion bus and control signals for external designs Standard 1 8 inch mono mini jacks for analog I O microphone and multi media speakers 0 O O O O O O O O O O O O O C O What You Need 1 2 What You Need Make sure that you have the appropriate hardware and software 1 2 1 Hardware Requirements In addition to kit contents you need the following equipment to use the DSKplus board Host A 386 486 or Pentium PC with a 1 44M byte 3 5 floppy disk drive Port DSKplus supports 4 bit parallel ports and 8 bit bidirectional parallel ports DSKplus does not support Enhanced Printe
3. Chapter 1 Introduction The TMS320C54x DSKplus is a low cost DSP starter kit with enhanced archi tecture The development kit contains a stand alone application board that you connect to your PC and that enables you to explore the architecture and operation of the C54x CPU and its peripherals The DSKplus board executes your custom C54x code in real time while the Windows based debugger analyzes it line by line displaying internal DSP register information in multiple windows also in real time The board s communication interface lets you create your own C54x DSP code and host PC code The hardware enables the use of expansion boards for adding memory peripherals such as codecs interface logic other DSPs or microcontrollers Topic Page 1 1 Kit Contents and Features 0 0c ccc cece cere eee e eee 1 2 12 Wiha YOu Need i eee aE te exe tecsceteravavasete aioe ere arereven E EE 1 3 1 3 FunctionaliOvervieW eerisr erretri teune EEIE aren aves averecners eee 1 4 Kit Contents and Features 1 1 Kit Contents and Features The DSKplus development kit contains these parts The DSKplus development board PC parallel port cable DB 25M to DB 25F Universal power supply Input 100 250 V 50 60 Hz Output 5 V dc 3 3 A GoDSP s Windows based Code Explorer debugger TMS320C54x C54x algebraic assembler Self test program Various application programs TMS320C54x DSP Reference Set Volume 1
4. bler directives so there is no need for a linker stage The code is ready to be loaded into the DSP Introduction 1 7
5. dify all of the internal registers of the DSP Some common functions of the debugger are single stepping code setting breakpoints in code setting up watch windows and managing file I O Additional debugger features and information can be found in Chapter 3 DSKplus Debugger and Application Loader Software These tools allow you to fully develop and debug DSP code in a real time environment Functional Overview The DSKplus software includes a Windows based real time debugger DSKplus application loader and an absolute algebraic assembler The DSKplus algebraic assembler enables you to program in assembly language without having extensive knowledge of the mnemonic instruction set Take for example a case in which you want to multiply two numbers x x y and place the result in accumulator B With a mnemonic based assembler you must know the function of each mnemonic instruction STM y AR2 Address of first multiplicand STM X AR3 Address of second multiplicand MPY AR3 AR2 B With an algebraic assembler you use simpler mathematical notation AR2 AR3 y x B AR2 AR3 For more information regarding the algebraic instruction set see TMS320C54x DSP Reference Set Volume 3 Algebraic Instruction Set The DSKplus algebraic assembler converts the source file with a asm exten sion to an object based COFF file with a obj extension As a result code ad dressing is fully resolved at assembly time using in line assem
6. es 80h 17Fh The protocol also uses a mutual com 1 4 Functional Overview munication buffer in DSP memory at 1000h 1009h The communication buffer is the memory used for communicating between the host and DSP All memory locations from 80h 17Fh and 1000h 1009h are reserved and must never be written over See the DSKplus memory map in Figure 1 2 for information on reserved memory Figure 1 2 DSKplus Memory Map Program Data 0000h 0000h neserved Interrupts OVLY 1 p Memory mapped 007Fh registers 0080h Communications kernel 005Fh 0060h Scratch pad RAM On chip Program RAM 007Fh DARAM 0080h 10K words OVLY 1 BSP RAM block or program RAM On chip DARAM Kernel buffer 10K words 10words HPI RAM block 100Ah 27FFh or program RAM 2800h eK es 1800h 27FFh Program RAM 2800h External 27FFh Reserved memory EFFFh F000h Reserved External on chip ROM F7FFh F800h Reserved ROM bootloader FF7Fh FF80h Reserved ROM interrupts FFFFh FFFF Introduction 1 5 Functional Overview The ACO1 analog interface circuit provides a single channel of voice quality data acquisition The ACO1 has the following features Single chip solution A D and D A conversions with 14 bits of dynamic range Built in programmable antialiasing filter Software programmable sampling rates Software programmable reset gain and loopback Software programmable power down mode 2 channel a
7. nalog input summing Software selectable auxiliary input Configurable as master slave to allow cascading 0 O O O O O O L The AC01 interfaces directly to the C542 TDM serial port The AC01 generates the required shift clock SCLK and frame sync FS pulses used to send data to from the ACO1 These pulses are a function of software programmable registers and the ACO1 master clock The master clock is generated by the on board oscillator See Chapter 4 Software Considerations for instructions on how to program the ACO1 or see the TLC320AC01C Single Supply Analog Interface Circuit Data Manual The DSKplus board provides six headers including an XDS510 emulator header to aid in the design of daughter boards The XDS510 emulator header allows the board to act as an XDS emulator target board with robust nonintrusive de bugging capabilities The XDS is the advanced emulator from TI available through your local sales office The on board 10 MHz oscillator provides a clock to the C542 the AC01 and the PAL device The C542 PLL option is set to 4 creating a 40 MHz internal clock oscillator The ACO1 runs at 10 MHz The ACO1 data manual includes information for operation at 10 368 MHz the data from the ACO1 tables and graphs must be interpolated to 10 MHz The GoDSP Code Explorer provides a Windows based debugging interface and a manageable development environment The debugger interface can display and mo
8. r Port and Extended Capabilities Port functionality However DSKplus can operate in standard mode of these ports Memory Minimum of 4M bytes Monitor Color VGA 1 2 2 Software Requirements In addition to the provided software you need the following applications to use the DSKplus board Windows Windows 3 1 or Windows 95 ASCII editor Introduction 1 3 Functional Overview 1 3 Functional Overview The diagram of the DSKplus development board is shown in Figure 1 1 It identifies the analog interface circuit TLC320AC01 AC01 IEEE 1149 1 emulation port XDS510 host port interface HPI CPU and peripherals Figure 1 1 DSKplus Board Diagram Standard 1 8 mini jacks for direct microphone and multimedia speaker connection Voice quality ACO Socketed 22V 10 PAL DSP SP external for HPI applications programmable address bus 40 MIP C542 analog interface DSP oooooojo00000 oooo0oo0oo0opooo0o00 OA0000000000 oo poooo0oo00000 oopooo0oo0o00000 JP6 i QO0000MP00000 a atatao talaga gaaaalaaja aafaa O i ogggg DSP TMS320C542 Li C Oo mamaaa 8868 c26 oO AIUI UETIDH R46R45 C24 oo E1 R39 JP3 JP2 oO oooo0oo0o0000000 ooo0oo0000 C00000000000 O0000 0 ODO0000000000
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